There’s fixed vs effective
Effective Layer uses multiple ingredients, uses effective bulk wind difference or EBWD for short, effective storm-relative helicity or ESRH for short, 100mb mean parcel COnvective available potential energy or mlCAPE), 100mb mean parcel Convective inhibitation, mlCIN) also 100mb mean parcel Lifted condensation level height, mlLCL for short
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Fixed Layer uses A bit different ingredients, includes 0-6 km bulk wind difference, or 6BWD for short, 0-1 km storm-relative helicity, SRH1), surface based Convective available potential energy, sbCAPE), surface parcel Convective inhibitation, sbCIN), and surface parcel Lifted condensation level height, sbLCL) I’ma put this here, because why not